Combination-lock.



W. H. SHELBOURNE, E. W. QUISENBBRY & P. DIGKERSON. COMBINATION LOCK.

APPLICATION FILED MAY 7, 1914.

1,126,660, Patented Jan. 26, 1 915.

2 SHEETS-SHEET 1.

THE NORRIS PETERS C0,, FHOTO-LITHO. WASHINGTON. D. c.

W. H. SHELBOURNE, E. W. QUISENBERY & P. DICKERSON.

COMBINATION LOOK.

APPLICATION FILED MAY 7, 1914.

1,126,660. Patented Jan. 26, 1915.

2 SHEETS-SHEET 2.

"M: MORRIS PETERS 00.. PHOTDUTMO... llmsnlnurmi. a I.

i. on, which form a part WILLIAM H. SHELBOUBNE,

ELWOOD V. QUISENBERY, AND PETER DICKERSON, OF

RUSSELLVILLE, KENTUCKY.

COMBINATION-LOCK.

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Specification of Letters Patent.

PatentedJan. 26, 1915.

Application filed May 7, 1914. Serial No. 837,005.

T all 7.0710111 it may concern:

Be it known that we, WILLIAM H. SHEL- noUnxn, ELwooD W. Qnisnnnnnr, andPnrnu DICKERSON, citizens of the United States, residents ofltussellville, in the county of Logan and State of Kentucky, have made acertain new and useful Invention in Combination-Locks; and We declarethe following to be a full, clear, and exact description of the same,such as will enable others skilled in the art to which it appertains tomake and use the invention, reference being had to the accompanyingdrawings, and to letters or figures of reference marked thereof thisspecification.

Figure 1 is a rear view of the invention with parts in locked position,the back of the casing being removed. Fig. 2 is a similar view withparts in unlocked position. Fig. 3 is a section on the line 33 Fig. 1.Fig. 4: is a section on the line lt- 1, Fig. 1. Fig. 5 is a front viewshowing the combination plates. Fig. 6 is a detail rear view of one ofthe notched disks.

The object of the invention is to provide an improvement in combinationlocks, whereby the operating parts are designed to be simplified andstrengthened, and it consists in the novel construction and combinationsof parts, as hereinafter set forth.

In the accompanying drawings, the numeral 2 indicates a door or cover,and 3 the jamb or marginal portion of a door-way or casing, which isprovided with a keeperplate l, designed to engage the bolt or bolts 5 ofthe lock, the holding parts of which are shown attached to the door orcover.

The bolt or bolts 5, on the inside of the door, are slide bolts, havinga head 6 and an extension 7 which may be suitably guided, as by slidingengagement with a bearing 41. This extension is engaged by an arm 8 ofan angle-lever 9, the other arm 1.0 of which is engaged by one end of anoperating rod 12, the other end of which is attached to an operatingknob 1& on the outside of the door or casing, said knob having a shankportion which extends through a slot 16 of the door or casing. The slot16 is short, and is covered in by the base of the knob 14. Theangle-lever is under tension of a spring 32.

Alongside the reciprocating knob 14, on the outside of the door, are thecombination plates or numbered plates of the lock. These plates areconcentric and preferably circular, and one of them is a fixed plate 17,secured to the surface of the door. An outer numbered operating plate orboss 18 is provided with a pivotal shank 19, which passes through thedoor and through the other combination plates, and is secured inside thedoor to a holding piece 20 (which may be integral with disk 24;), bymeans of a squared end and a pin passing through a perforation thereof.A bearing plate 21 is secured to the inside of the door, and extendingacross this plate are friction pieces or bearings 22, which may be ofleather, on which bears an inner notched plate or disk 23, which issecured to a sleeve, said sleeve being pivotally mounted on the shank19, to which is secured a notched disk 2%, on the squared portion of theshank and movable with the boss 18. The disk 23 is connected by itssleeve device to another plate 33, and this disk and the disk 24 areeach provided with a radial notch 25, these notches in certain positionsof the disks coming in alined position to receive the end of a slidelatch 26. When this latch is moved into engagement with the notches ofthese disks, the bolts of the lock are automatically with drawn from thekeeper and the operating boss 18 is held stationary.

The slide latch 26 is a part of a slide head 27, moving in guidebearings, and provided with a slide bar 28, parallel with the slidelatch and connected to the shank of a second operating or unlocking knob29, outside the door, said shank passing through a slot 30 of the door.The slide head 27 is under the tension of a spring 31, to withdraw thelatch from the disks.

The journal bearing or pivotal sleeve of the disk 23 is secured to thecombination plate 33 which is next to the outer plate or boss 18.

When the door is open, and the bolts 5 are in locked position, the outercombination plates may be adiusted to any combination of numbers withintheir limits which will serve to brin the radial notches of the insidedisks in alinement. Then these notches are aline d and the latch isengaged therewith, by operation of knob 29, this movement releasing thebolt head from the locking engagement of a projection or trip device 34of the latch head, so that it is withdrawn by the spring and anglelever. In this relation the operating knob 29 is held in fixed positionby the engagement of the lateral face of the extension? With theprojection 3% of the slide bar 28 connected to said knob.

In the-unlocked position of the bolts, the position of the disks andcombination plates is determined, and the operating knob 14 is free tobe moved against the tension of the spring.

The door being closed, the reciprocating knob 1% is pushed and operatesthe rod 12 to move the angle-lever 9 in the proper direction to move thebolts into engagement With the keeper. By this movement the extension 7of the bolt head is caused to reciprocate until thesslide bar 28 isreleased and is moved by its spring into position to engage a shoulder35 of the bolt head and prevent WithdraWal of the bolts from the keeper.This slide bar 28 being in rigid connection with the slide latch 26, itsreciprocating movement Withdraws said latch from the radial notches ofthe disks 23 and 24:, so that When the boss 18 is turned the alinementof these notches is broken, and the engagement of the latch 26 With theedge of the disk or disks serves to assist in holding the parts inlocked position and preventing movement of either the locking knob 14 orthe unlocking knob 29, these knobs having parallel motions ofreciprocation.

In order to unlock the door, the outside plates are turned according tothe numbers of the combination upon Which the lock has Copies of thispatent may be obtained for five cents each, by addressing the beenset,'to bring the notches of the inside disks into alinement with eachother and With the slide latch 26. This releases said slide latch fromengagement with the edges of the disks, and upon pushing the unlockingknob 29 the slide latch is brought into engagement with said notches,the bolts are Withdrawn by spring action, and the unlocking knob is heldin fixed position by the engagement through its trip device of the slidehead With the bolt head.

WVe claim:

In a permutation lock, the combination With a plurality ofcombinationdisks having radial notches, of a reciprocatingspring-retracted lock bolt, a spring-projected latch bolt reciprocatingat right angles to said lock bolt and adapted to engage said radialnotches, having means for locking said lock bolt when the lock bolt isin projected position, said lock bolt being provided with means toprevent the projection of the latch bolt When said lock boltisretracted, and means for manually operating said bolts against thetension of their springs.

In testimony whereof We afiix our signatures, in presence of tWoWitnesses.

WVILLIAM H. SHELBOURNE. E. W. QUISENBERY. PETER DICKERSON. v

Witnesses:

HOMER FEL'rs, LULU L. SHELBOURNE.

Washington, D. O.

said latch bolt Commissioner of Patent!

